Vehicle-brake.



w. R. ROBINSON.

VEHICLE BRAKE. APPLICATION nann- JUNE '27. 1912.

Patented Jan. 7, 1913.

3 SHEETS-SHEET 1.

za-wuauto'a I his:

W. ROBINSON.

VEHICLE BRAKE.

urmou'zox rum: JUNE 21. 1912.

Patented J an.

3 SHEETSSHEET 2.

QQEI m-EEEE WIR. ROBINSON.

VEHICLE BRAKE.

APPLICATION FILED mm 27. 1912.

1,049,534. Patented Jan. 7, 1913.

a snmrs-snnm a/ lm/ Memo I WILnIAi/i It; non nson, or'jivrttrron,onneon'.

-vEHIo E-BRA E." Y I inaasaa.

. Application filed June 27,

To all whom, it may concern: v

Be itknown that I, WILLIAM R. Ros n- .sON, a citizen of the'UnitedStates, residing at. Milton, in the county of Umatilla, State of'Oregon,have invented certain new, and useful Improvements in Vehicle-Brakes;and 'Indo herebydeclare the following tobe a full,-clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and usethesame. This-inventionrelates -to vehicle brakes and has for an object to provide a novelmechanism for automatically actuating the brake beams of a fore-wagonand trail. Wagon upon .a down grade.

A further object of the invention is to provide a. novel brake mechanismfor the forewagon and trail wagon, the mechanism of both'wagons beingcoupled together by a common cable which becomes taut upon a down gradeand/ simultaneously the brake mechanisms of both wagons. lVith the aboveobjects in view the invention consists of certain novel details ofconstruction and combination of parts hereinafter-fully describedandclaimed, it being understoodthat various modifications may .bemade inthe minor details of construction Within the scopeof the appendedclaims.

In theaccompanying drawings forming part vof this specificationi Figure'lj-is a plan view showing a fore-wagon and trail wagon equipped with myimprovements. Fig. 2 5 side elevation of the parts shown in Fig. 1 withthe near. wheels removed.

view of the connecting link between the brake cables of the fore andtrail wagons. I

Referring 'now to the drawings in which like characters of referencedesignatesimilar parts, the tongue 10 of the front wheeled axlell of'the trail wagon is held under-- neath the rear wheeled axle-12 ofthefore Wagon by a draw chain 13,' 'a U-shaped strap 14 arranged astridc ofthe tongue tip serving to secure the chain to the tongue, thisSpecification of Letters Patent.

Patented J an. '7, 1913. 912. Serial No. 706,229.

chain being normally taut upon level roads and upgrades and holdingthetongue in the position shown, but becoming slack on a downgrade andpermitting of the tongue runnhag-forwardly beyond the axle 12. Theforward end of the chain may be securedto the front axle of thefore-wagon or to any other part of the wagon body.

The brake beam 14 of the trailwago'n rear wheels is of the usual-kindprovided with an upstanding actuating lever 14". A. cable 1o 1s trainedthrough sheaves 16 and 17 on the trail wagon front bolster18 and isthence led rearwardly along the trail wagon and terminally connected tothe lever 14- A forward pullupon this cableserves to set the brake beam14' The cable 15 is terminally connected to the brake beam actuatingcable 19 of the fore -wagonby a lin k 'Qtl which will be hereinaftermore fully described. the cable 19 being trained under a sheave 21journaled between the branches of the strap 14. and beingconnectedat-the forward end to the forewagon brake operating mechanism.The twocon'nected cables 15 and 1'9 unite in forming a continuous limpconnector between the brake beams of the fore and trail wagonsvand byvirtue of this connector being trained underneath the sheave. 21. itwillbe seen that the cables are slack when the draw chain 13 is taut. onlevel ground and up grades, but upon the draw-chain becoming slack ondown grades with a resultant running forward of the tongue 10 underneaththe fore-wagon. both cables will become taut with a correspondingforward pull upon the cable 15 and rearward pull upon the cable 19 witha resultant setting automatically of. both brake beams: on the trail andfore-wagon.

The brake bamzactuat-ing mechanism of the forewagon is of novelcharacter and .will

now be fully described. A. brakebeam 22 is suspended from the hound bar23 of the fore-wagon by means of links 2-1- at the opposite ends of thebeam engaging with J- bolts 25 and 26 carried by the hound bar andqbrakebeam respectively. The brake beam is equipped terminally with the usualshoes 27 for engagement with the rear wheels 28. The brake beam '22 iscentrally interposed between brackets 29, which are provided with forkedterminals 30 and 31 which hear'upon the upper and lower fa es of thebrakelbeam and are rigidly se ured thereto through the instrumentalityof bolts 32 passed vertically through the parts.

Both brackets extend rearwardly'from the brake beam and are both offsetupwardly Y bolt 39, there being a plurality of openings vrear axle 12 oft 40 formed in the'lever to permit of the lever being adjustably mountedon the pivot pin to vary the leverage. The lever is'equipped withupturned'ends 41 and 4-2, and the end 41 ofthe lever is secured to thefore-wagon by achain 43or otherwis ;h e otherend 42 of the lever isconnecte .to the above mentioned brake operating cable 19. fUpon thecable be g pulled rearwardly by the tongue of th Itrail wagonrunning-underneath the forte-wagon upon a downgrade, the lever 38 willbe rocked on its pivot and since one end of the lever is secured to therear axle 12 of the fore-wagon, the brake'beam will be pulled rearwardlyand the brakes set.

For training the brake actuating-cable 19 properly over the rear axle 12of the'fore wagon I provide a T-shapedbracket 44 the alined branches 45of which" extend substantiallyyertically upon the rear face of the axleand are equipped terminally with sheaves 46 and 47, the cable.beingpassed under the bolster 48 and trained over the outer sides of thesheaves 46 and 47. i clip 49 is mounted on the rear axle, the bight ofthe clip being bent substantially S-shaped and bearing upon the outerface of the bracket-44 between the sheave, the

' clip straddling the bracket and securing the receives the eye same atone 'end to theaxle.

In Fig. 8 the link connection 20 is shown .to comprise a shank 54 whichis terminally equipped with eyes55 and 56, one of which 57 of the cable19 of the fore-wagon, and the other of which receives the securing eye.58 of a latch 59 which loosely PI'OJGClZS through the terminal links 60of. the trail wagon cable 15. The latch extends along the shank and isnormally held locked thereby by a ring 61 which encircles the shank andfree end of the latch.- Upon the ring being slid forwardly beyond thefree end of the latch thellatter may be rocked rearwardly and passed outof th g A second clip 50 is secured to the axle and the bight of trailwagon eye 60 to detach both cables from each other. 7

What is claimed, is

1 The combination of a fore-wagon, a -trail wagon, a brake on thefore-wagon, a brake on the trail wagon, a continuous limp connect-orbetween both brakes, a draw chain connected to the fore-wagon andconnected to the trail wagon, a sheave on the trail wagon tongue, saidcontinuousconnector being trained underneath said sheave, said connectorbeing slack when said draw chain is taut, said connector being taut uponsaid draw chain becoming slack on down grades with a resultant rearwardpull upon the fore-wagon-brake and forward pull upon the trail wagonbrake whereby to automatically set both of said brakes' i wagon tongue,and a cable connected to the .free 'end of said lever and thence trainedrearwardly under said-sheave and connected to said trail wagon brake,said cable normally being slack but becoming taut on down grades witha'resultant forward pull upon the trail wagon brake and rearward pullupon the fore wagon brake whereby to automatically set both of saidbrakes.

3. The combination with a fore wagon and a trail wagon, and meansconnecting both wagons, of a brake on said trail wagon, a sheave on thetrail wagon tongue, a brake beam loosely suspended -from said forewagon, a rearwardly extending bracket on said brake beam, a leveradjust-ably pivoted intermediate the ends on said bracket, a con leverto said fore wagon, a sheave mounted on the fore wagon rear axle, andacable connected to the free end of said lever, thence C. R. SAMUEL, TC. FRAZIER.

' '2. The combination with a fore-wagon necting element anchoring oneend of said upon the fore wagon brake whereby to- In testimony whereof,I afiix my signa-

